Overview
| MLIT filing number | 1151620 |
|---|---|
| Type | Statutory Recall (government-mandated recall) |
| Date filed | June 3, 2022 |
| Manufacturer(s) | Toyota |
| Component | Computer (Control System) |
| Production period | December 2021 — May 25, 2022 |
| Vehicles affected | 18,784 units |
Defect
On vehicles equipped with the Proactive Driving Assist (PDA) driver assistance system — a system that assists with vehicle deceleration and steering based on surrounding conditions and driving status — the control program is incorrect. If the brake pedal is operated during a PDA deceleration control event, the brake may remain applied after the control event ends. This causes poor acceleration and, with continued use, brake overheating leads to smoke. In the worst case, a vehicle fire may occur.
Corrective action
On all vehicles, reprogram the brake actuator control unit to the corrected specification. Additionally, inspect all brake-related components and replace any parts showing abnormalities caused by overheating.
Affected models & chassis ranges
This filing lists 3 type code(s). A vehicle is affected if its chassis number falls within one of the ranges below.
| Type code (型式) | Model | Chassis ranges |
|---|---|---|
| 6AA-ZWR90W | NOAH | ZWR90-0001001 — ZWR90-0013587; ZWR90-8000000 — ZWR90-8003037 |
| 6AA-ZWR92W | NOAH | ZWR92-0001001 — ZWR92-0001074 |
| 6AA-ZWR95W | NOAH | ZWR95-0001001 — ZWR95-0004128 |
Original Japanese (MLIT source text)
Show the original Japanese filing text
状況
運転支援装置のＰＤＡ（※）において、制御プログラムが不適切なため、ＰＤＡによる減速制御中にブレーキペダルを操作すると、制御終了後もブレーキが作動したままとなる場合がある。そのため、加速不良が発生し、そのままの状態で使用を続けると、ブレーキ過熱により発煙し、最悪の場合、火災に至るおそれがある。 （※）プロアクティブドライビングアシスト：周辺環境と運転状況に応じて、車両減速と操舵を支援するシステム
改善措置
全車両、ブレーキアクチュエータ用制御コンピュータのプログラムを対策仕様に修正する。また、ブレーキ関連部品を点検し、過熱による異常が認められた場合は交換する。
Source & verification
This entry reproduces public data from Japan's MLIT recall registry. English text is jdmvin.com's own translation; always verify against the official source:
https://renrakuda.mlit.go.jp/renrakuda/ris-detail-car.html?class=recalldatacar&id=3005188